如何在lis中创建新行

Question

我正在使用记录和列表尝试这个简单的收据代码，在不同的客户之间我希望有一个新行，但因为它在列表中\n不起作用

我尝试过在代码中的不同部分添加\n，也尝试过添加print("\n")，但这也不起作用

from collections import *

customer_details = namedtuple("Customer","ID First_Name  Surname Age Gender Product Price")

cus1 = customer_details(16785, "John","Apleased",36,"Male","coffee",70)

customers = [cus1]

cus2 = customer_details(10, "Steve","Jobs",67,"male","tea",40)

customers.append(cus2)

print(customers)

当你查看列表时，客户之间应该有一个间隙

Answer 1

可以使用join方法在新行中打印每个元素

print("\n".join(customers))

Answer 2

可以使用for循环

>>> for customer in customers:
...     print(customer)
... 
Customer(ID=16785, First_Name='John', Surname='Apleased', Age=36, Gender='Male', Product='coffee', Price=70)
Customer(ID=10, First_Name='Steve', Surname='Jobs', Age=67, Gender='male', Product='tea', Price=40)

或者可以使用'\n'.join()，但是首先需要将customers从namedtuple列表转换为字符串列表

>>> print('\n'.join(str(customer) for customer in customers))
Customer(ID=16785, First_Name='John', Surname='Apleased', Age=36, Gender='Male', Product='coffee', Price=70)
Customer(ID=10, First_Name='Steve', Surname='Jobs', Age=67, Gender='male', Product='tea', Price=40)